And emery anderson



(No Model.)

1). A. PATTERSON & E. ANDERSON.

- AMALGAMATOR.

No. 512,895. Patented Jan. 16, 1894.-

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ATTORNEYS.

NITEn STATES PATENT EEIoE.

DOC. A. PATTERSON, OF SUMMITVILLE, COLORADO, AND EMERY ANDERSON,

OF WHITE OAKS, TERRITORY OF NEIV MEXICO, ASSIGNORS TO THEM- SELVES, ANDBENJAMIN I-I. DYE, OF IVl-IITE OAKS, TERRITORY OF NEW MEXICO.

AMALGAMATO R.

SPECIFICATION forming part of Letters Patent No. 512,895, dated January16, 1894. Application filed February 2, 1893. Serial No. 460,687. (Nomodel.)

To all whom it may concern.-

Be it known that we, Doo. A. PATTERSON, of Summitville, in the county ofRio Grande and State of Colorado, and EMERY ANDERSON,

of White Oaks, in the county of Lincoln and Territory of New Mexico,have invented a new and Improved Amalgamator, of which the following isa full, clear, and exact description.

The object of the invention is to provide a new and improvedamalgamator, which is simple and durable in construction, very effectiveand economical in operation, and arranged to catch and retain all theprecious 5 metal contained in the pulp.

The invention also consists of certain parts and details andcombinations of the same, as will be fully described hereinafter andthen pointed out in the claim.

Reference is tobe had to the accompanying drawings, forming a part ofthis specification, in which similar letters of reference indicatecorresponding parts in all the figures.

Figure 1 is a sectional side elevation of the improvement on the line 11of Fig. 2. Fig. 2 1s a plan View of the same; and Fig. 3 is a partialtransverse section of the same on the line 3-3 ofFig. 1.

The improved amalgamator is provided 0 with a pan A, made of copper orother suitable material galvanized or amalgamated as desired andsupported on a suitable framework B, which latter as well as the pan Aare held in an inclined position, as is plainly 3 5 shown in Fig. 1.Into the upper end of the pan A'discharges the apron 0 connecting thepan with the stamp mill, so that the pulp from the latter can flow overthe said apron into the upper end of the pan A. The latter is 0 providedwith the usual two parallel sides D,

and its upper end E is slightly curved upward, so that the pulp flowingover this curved upper end readily passes into the pan A.

In order to interrupt the flow of the pulp 5 and to cause preciousmetals to come in contact with the bottom of the pan A, we provide 'atransversely extending gate F supported on the sides D of the pan A, itslower edge extending close to the bottom of the pan, so

that the in-coming pulp must pass through the space formed between thelower end of the gate F and the bottom of the pan A. A transverselyextending riffle G is formed a suitable distance below .the gate F, andthis riffle is curved, being preferably semi-circular, and extendsupward so as to form a pocket for containing quicksilver or othersuitable amalgamating material. Below the riffle G is a second,straight, vertically disposed riftle H, and below the sameis a gate Isimilar to the gate F, and next to this gate is arranged a riffle J,which is curved similarly to the riffle Gr, but is bent in an oppositedirection to the latter, that is downward, as is plainly shown inFig. 1. On the lower end of the pan A is arranged atransverselyextending riffle K, which is vertically disposed and similar to theriflie H. When the pulp flows over the apron O and over the curved upperend E into the pan A, then the material is deflected downward by thegate F, so as to come in contact with the bottom of the pan, and at thesame time the material is more liable to come in contact with thequicksilver contained in the next I semi-circular ritfle G. Thequicksilver in the 75 latter furnishes a vibrating bed to which the sandand iron will not adhere, and its motion will cause the latter to passover the top of the riffle into the next part of the pan containing theriflie H. It will be seen that the precious metal will be interruptedand taken up by the quicksilver in the semi-circular riffle G, so thatonly the lighter material will pass over the same to be again agitatedin passing over the riflle H and under the gate I, to finally pass overthe last semi-circular riflie J, which latter serves principally, inconj unction with the riflle K, for floured and other precious metalsmoving along with the sand and water, which impinge against this reverseriflle and feebly cling to it, so that the water passing this riffle J,receives a rolling motion and will cause and maintain a depression inthe sand below the riflie, so that any mercury reaching this depressionwill be protected, 5 will adhere to the pan, and will finally come to astate of rest in the semi-circular recess of the rifile, from which itmay be removed by a small scoop manipulated by the operator.

It will be understood that the operator also, I00

from time to time, removes the material amalgamated in the riflie G andreplaces mercury, so that the process will be kept up continuously. Itwill also be understood that the straight rifile H is used principallyto agitate the flow, but it also serves to study or observe thecondition of the semi-circular rifl'le above by turninga stream of waterupon it by means of a hose, when it can be at once observed whethermercury is accumulating, in which case the upper riflle has becomeoverloaded and requires immediate attention from the operator.

Having thus fully described our invention, we claim as new and desire tosecure by Letters Patent-- As an improved article of manufacture the panA, consisting in the parallel sides D D, the amalgamated metal bottomhaving re- Versely curved riffles G J, the former serving to retain abed of mercury, the short intermediate rifiie H, the lowermost rifl'lcK, the

set forth.

DOG. A. PATTERSON. EMERY ANDERSON.

Witnesses to the signature of Doc. A. Patterson:

THOS. M. BOWEN, Gus. F. JOHNSON. \Vitnesses to the signature of EmeryAnderson:

SIDNEY M. PARKER, W. H. REYNOLDS.

